William third Earl Harcourt

After about three years as a young widow, Mary Lockhart married William Harcourt , who was a distinguished soldier and held a court position (though he was an inactive member of parliament). He succeeded his...

MH 's husband died at St Leonard's Hill near Windsor after more than fifty years of marriage.

MH and her husband subscribed in 1803 to Poems by the widowed Mrs George Sewell (Mary Sewell) . Other subscribers included Elizabeth Carter , Elizabeth Cobbold , Catherine Fanshawe , Elizabeth Montagu , Arabella Rowden

In 1782 MH 's husband bought a fairly new house and estate near Windsor. This house in the village of Clewer, named by William Harcourt St Leonard's Hill, remained their home for the...

MH wrote letters to her sister-in-law Elizabeth, Countess Harcourt , mostly about her time with the armies (latterly the British army commanded by her husband ), fighting against the French in the Low Countries.